package com.sky.service.user.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.db.sql.Order;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.OrdersSubmitDTO;
import com.sky.exception.AddressBookBusinessException;
import com.sky.mapper.merchant.MerchantMapper;
import com.sky.mapper.user.AddressBookMapper;
import com.sky.mapper.user.OrderDetailMapper;
import com.sky.mapper.user.OrderMapper;
import com.sky.mapper.user.ShoppingCartMapper;
import com.sky.pojo.*;
import com.sky.result.Result;
import com.sky.service.user.OrderService;
import com.sky.utils.MapUtils;
import com.sky.vo.OrderSubmitVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

@Service
public class OrderServiceImpl implements OrderService {

    @Autowired
    private AddressBookMapper addressBookMapper;

    @Autowired
    private ShoppingCartMapper shoppingCartMapper;

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private OrderDetailMapper orderDetailMapper;

    @Autowired
    private MerchantMapper merchantMapper;


    @Override
    public Result<String> getEstimatedDeliveryTime(Long shopId, String customerAddress) {
        // 预计送达时间 = 当前时间 + 菜品制作时间 + 配送时间 + 预留时间 (10分钟)
        //1.菜品制作时间
        Integer makeTime = shoppingCartMapper.getMakeTimeByUserId(40L);
        //2.配送时间
        Merchant merchant = merchantMapper.selectById(shopId);

        Integer costTime = MapUtils.baoiduTwoPointCostTime(merchant.getShopAddress(), customerAddress);

        LocalDateTime estimatedDeliveryTime = LocalDateTime.now().plusMinutes(makeTime * 60 + costTime + 600);

        return Result.success(estimatedDeliveryTime.toString());
    }
    @Override
    @Transactional
    public OrderSubmitVO submitOrder(OrdersSubmitDTO dto) {
        //异常情况的处理（收货地址为空、超出配送范围、购物车为空）
        AddressBook addressBook = addressBookMapper.getById(dto.getAddressBookId());
        if (addressBook == null) {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }

//        Long userId = BaseContext.getCurrentId();
        Long userId = 40L;
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(userId);

        // 查询当前用户的购物车数据
        List<ShoppingCart> shoppingCartList = shoppingCartMapper.list(shoppingCart);
        if (CollUtil.isEmpty(shoppingCartList)) {
            // 如果为空，则抛出业务异常
            throw new AddressBookBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        // 构造订单数据
        Orders order = new Orders();
        BeanUtil.copyProperties(dto, order);
        order.setPhone(addressBook.getPhone());
        order.setAddress(
                addressBook.getProvinceName()
                        +addressBook.getCityName()
                        +addressBook.getDistrictName()
                        +addressBook.getDetail()
        );
        order.setConsignee(addressBook.getConsignee());
        order.setNumber(UUID.randomUUID().toString().replace("-", ""));
        order.setStatus(Orders.PENDING_PAYMENT);
        order.setOrderTime(LocalDateTime.now());
        order.setPayStatus(Orders.UN_PAID);
        order.setUserId(userId);
        order.setStatus(Orders.PENDING_PAYMENT);

        //预计送达时间
        order.setDeliveryTime(dto.getEstimatedDeliveryTime());
        //出餐时间
        Integer makeTime = shoppingCartMapper.getMakeTimeByUserId(userId);
        order.setMealTime(LocalDateTime.now().plusMinutes(makeTime));

        //向订单表插入1条数据
        orderMapper.insert(order);

        //订单明细数据
        List<OrderDetail> orderDetailList = new ArrayList<>();
        for (ShoppingCart cart : shoppingCartList) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart, orderDetail);
            orderDetail.setOrderId(order.getId());
            orderDetailList.add(orderDetail);
        }

        //向明细表插入n条数据
        orderDetailMapper.insertBatch(orderDetailList);

        //清理购物车中的数据
        shoppingCartMapper.deleteByUserId(userId);

        //封装返回结果
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(order.getId())
                .orderNumber(order.getNumber())
                .orderAmount(order.getAmount())
                .orderTime(order.getOrderTime())
                .build();

        return orderSubmitVO;
    }


}
